内联字段是可以通过使用方括号(即[和])嵌入到任何文本字段中的ADIEU表达式。

Inline fields are ADIEU expressions that can be embedded in any text field by using square brackets (that is, [and]).

youdao

当您在谓词—即方括号()—中使用position时，索引是相对于元素的父元素的。

When you use position in the predicate-that is, within the square brackets () -the index is relative to the element's parent.

youdao

但有一点是不同的，即您可以使用方括号创建list，如清单1所示。

One difference, however, is that you can create a list using square brackets, as shown in Listing 1.

youdao